891402 divided by 21 
Let's see how many times 21 fits into 891402.

On to step 1:
If we divide 8 by 21, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 21

Let's proceed to step 2:
21 goes into 89 4 times with a remainder of 5.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 84 from 89 leaves us with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 21

Moving on to step 3:
21 can be fit into 51 2 times, resulting in a remainder of 9.
The next digit of our result is 2. 
Result so far: 42.0
Deduct 42 from 51 and we're left with 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 21

Let's proceed to step 4:
21 goes into 94 4 times with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 424.0
Deduct 84 from 94 and we're left with 10.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 21

Going ahead to step 5:
21 can be fit into 100 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 4244.0
Deduct 84 from 100 and we're left with 16.
Bring next digit (2) of the dividend behind the 16 and repeat the process: 162 / 21

Going ahead to step 6:
21 can be fit into 162 7 times, resulting in a remainder of 15.
Write down 7 as next digit of the result. 
Result so far: 42447.0
If we take 147 away from 162, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
When dividing 150 by 21, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 42447.7
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 8:
The number 21 fits into 30 1 times, leaving a remainder of 9.
The next digit of our result is 1. 
Result so far: 42447.71
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
When dividing 90 by 21, we get 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 42447.714
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 42447.7142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 11:
21 goes into 180 8 times with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 42447.71428
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
120 divided by 21 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 42447.714285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 13:
21 goes into 150 7 times with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 42447.7142857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 14:
The number 21 fits into 30 1 times, leaving a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 42447.71428571
Subtracting 21 from 30 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 42447.71428571, and the remainder is 9e-09.